// 云函数入口文件
const cloud = require('wx-server-sdk')

cloud.init()
const db=cloud.database();
// 云函数入口函数
exports.main = async (event, context) => {
  if(event!=null){
    var openid=event.openid
    return await db.collection('user').doc(openid).get()
  }
  else{
    const wxContext = cloud.getWXContext()
    return await db.collection('user').doc(wxContext.OPENID).get()
  }
  

}